Delta Air Lines, Incorporated, and Southwest Airlines Company are two publicly traded airline companies. They reported the following

in their financial statements $($in millions of dollars, except per$-$share amounts and stock prices$)$:

Required:

$1-$a$.$ Compute the $2018$ ROE for each company. Express ROE as a percentage. TIP: Remember the bottom of the ROE ratio uses the

average stockholders' equity.

$1-$b$.$ Which company appears to generate greater returns on stockholders' equity in $2018?$

$2-$a$.$ Compute the $2018$ P$/$E ratio for each company.

$2-$b$.$ Which company do investors appear to value more?